PHPのお勉強！

PHP TOP
PHP 8.4.2 Released!

    ReflectionClass::implementsInterface

    (PHP 5, PHP 7, PHP 8)

    ReflectionClass::implementsInterface — インターフェイスの実装を調べる

    説明

    public ReflectionClass::implementsInterface(ReflectionClass|string $interface): bool

    インターフェイスを実装しているかどうかを調べます。

    パラメータ

    interface

    インターフェイスの名前。

    戻り値

    成功した場合に true を、失敗した場合に false を返します。

    エラー / 例外

    ReflectionClass::implementsInterface() は、 interface がインターフェイスでない場合に ReflectionException をスローします。

    参考

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 3 notes

    up
    2
    jtunaley at gmail dot com
    6 years ago
    Note that this method also returns true when the thing you're reflecting is the interface you're checking for:

    <?php
    interface MyInterface {}

    $reflect = new ReflectionClass('MyInterface');
    var_dump($reflect->implementsInterface('MyInterface')); // bool(true)
    ?>
    up
    1
    dhairya dot coder at gmail dot com
    8 years ago
    //checks that whether class Fruit implements interface apple or not

    interface Apple {

    function taste();
    }

    class Fruit implements Apple {

    function taste() {
    echo "Seet";
    }
    }

    $obj=new ReflectionClass('Fruit');
    var_dump($obj->implementsInterface('Apple')); //Here it will checks that whether class Fruit implements interface apple or not
    up
    0
    keepchen2016 at gmail dot com
    7 years ago
    interface Factory
    {
    public function sayHello();
    }

    class ParentClass implements Factory
    {
    public function sayHello()
    {
    echo "hello\n";
    }
    }

    class ChildrenClass extends ParentClass
    {

    }

    $reflect = new ReflectionClass('ParentClass');
    var_dump($reflect->implementsInterface('Factory'));

    $second_ref = new ReflectionClass('ChildrenClass');
    var_dump($second_ref->isSubclassOf('ParentClass'));

    $third_ref = new ReflectionClass('Factory');
    var_dump($third_ref->isInterface());

    //can not be called as static
    var_dump(ReflectionClass::isInterface('Factory'));
    die;
    //#result
    bool(true)
    bool(true)
    bool(true)
    PHP Fatal error: Non-static method ReflectionClass::isInterface() cannot be called statically
    ＋add a note
    To Top